usha swims in 50m long pool she covers 100m in a 1min by swimming one end to other and back along the same straight path .find the average speed and velocity
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Answer :
3ms−1 ; zero
Solution :
Here , total distance travelled , s=180m , time taken , t=1min.=60s
Average speed =st=18060=3m/s
In swimming from one end to the other and back along the same straight path , displacement =0.
Average velocity =displacementtime=zero
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